NRC Generic Letter 1980-89
| ML031350460 | |
| Person / Time | |
|---|---|
| Issue date: | 10/24/1980 |
| From: | Grier B NRC Region 1 |
| To: | |
| References | |
| BL-79-01B, Suppl 3 GL-80-089, NUDOCS 8011070343 | |
| Download: ML031350460 (4) | |
w styREGs
.t STATES UES
sEUNITED
NUCLEAR REGULATORY COMMISSION
REGION I
t R631 PARK AVENUE
KING OF PRUSSIA, PENNSYLVANIA 19406 October 24, 1980
cl Docket No. 50-03 ti)
Consolidated Edison Company of New York, Inc.
ATTN: Mr. Peter Zarakas Vice President
4 Irving Place -
New York, New York 10003 un Gentlemen:
The enclosed Supplement No. 3 to IE Bulletin 79-OiB, "Environmental Qualifica- tion of Class 1E Equipment," is forwarded to you for action. This supplement clarifies two issues raised by Supplement No. 2. These are (1) the submittal of qualification information for equipment resulting from TMI Action Plan requirements and (2) the qualification of equipment-which is required to achieve a cold shutdown condition. This action is a result of industry feedback to NRC regarding interpretation of Supplement No. 2. The information presented is applicable to your submittal regarding environmental qualification of Class
1E equipment which is required by November 1, 1980.
If you desire additional information regarding this matter, please contact this office.
Sincerely, yce H. Grier Director Enclosures:
1. Supplement No. 3 to IE Bulletin No.79-01B
2. List of Recently Issued IE Bulletins
CONTACT
- S. 0. Ebneter
(215-337-5283)
cc w/encls:
L. 0. Brooks, Project Manager, IP Nuclear W. Monti, Manager - Nuclear Power Generation Department M. Shatkouski, Plant Manager J. M. Makepeace, Director, Technical Engineering W. D. Hamlin, Assistant to Resident Manager J. D. Block, Esquire, Executive Vice President Administration Joyce P. Davis, Esquire
80 110703Y3
SSINS No.: 6820
A->~' Accession No.:
8008220248 IEB Sup #3 to 79-01B
UNITED STATES
NUCLEAR REGULATORY COMMISSION
OFFICE OF INSPECTION AND ENFORCEMENT
WASHINGTON, D.C. 20555 October 24, 1980
IE Bulletin No. 79-O0B Supplement No. 3: ENVIRONMENTAL QUALIFICATION OF CLASS
IE EQUIPMENT
Description of Circumstances
Two issues were raised by Supplement No. 2 which require clarification. These are: (1) the dates required for submittal of qualification information for TMI related equipment, and (2) whether the equipment required to achieve a Cold Shutdown condition must be environmentally qualified if the licensing basis for the plant was a Hot Safe Shutdown condition.
(1) Supplement No. 2 (Q.l, Q.5) addressed the minimum cold shutdown require- ments. The staff position on this issue is that the licensee must identify and environmentally qualify the equipment needed to complete one method (path) of achieving and maintaining a cold shutdown condition. The equipment of other paths must be reviewed to assure that its failure will not aggravate or contribute to the accident (ref.
Q.5 Supp. No. 2).
Due to an inconsistency between Supplement No. 1 and Supplement No. 2, the staff position on this issue was unclear. Therefore, the following will apply:
a. The qualification information for equipment needed to achieve and maintain a Hot Safe Shutdown condition must be submitted not later than November 1, 1980.
b. The qualification information for equipment required to achieve and maintain a Cold Shutdown condition (ref. Q.1 and Q.5 of Supplement No. 2) must be submitted not later than February 1, 1981.
(2) IEB 79-O1B required a 90 day response which was due in mid-April 1980.
Supplement 1 (Feb. 1980) informed licensees that equipment which was
"planned" to be installed as a result of lessons learned need not be addressed in that response. Some of this equipment has since been installed. Supplement No. 2 (Q.5, Q.21) identified that the staff posi- tion was that equipment which is installed should be treated in a manner similar to all other safety-related electrical equipment and be addressed in the November 1, 1980 submittal. This position represents no change in staff position regarding the scope of the review. However, since the staff position on this issue was unclear the following will apply:
a. Qualification information for installed TMI Action Plan equipment must be submitted by February 1, 1981.
b. Qualification information for future TMI Action Plan equipment (ref.
NUREG-0737, when issued), which requires NRC pre-implementation review, must be submitted with the pre-implementation review data.
IEB 79-Ol Sup #3 October 24, 1980 c. Qualification information for TMI Action Plan equipment currently under NRC review should be submitted as soon as possible.
d. Qualification information for TMI Action Plan equipment not yet installed which does not require pre-implementation review should be submitted to NRC for review by the implementation date.
The above items 1 and 2 represent no change in staff position regarding the scope of the 79-OlB Supplement 2 review.
IE Bulletin No. 79-OIB was issued under a blanket GAO clearance (8180225 (R0072), clearance expired July 31, 1980) specifically for identified generic problems. Supplement No. 3 to Bulletin 79-01B is for information, hence no GAO clearance is required.
IE Bulletin No. 79-,<4B Enclosure 2 Supplement No. 2 October 24, 1980
RECENTLY ISSUED
IE BULLETINS
Bulletin Subject Date Issued Issued To No.
Supplement 3 Environmental Qualifica- 9/30/80 All holders of a to 79-O1B tion of Class 1E power reactor Equipment OL or CP
80-22 Automation Industries, 9/12/80 All holders of a Model 200-520-008 radiography license
80-21 (Not Used)
Revision 1 Boron Loss from 8/29/80 All holders to 79-26 BWR Control Blades of a BWR power reactor OL
Revision 1 Failures of Mercury- 8/15/80 All holders of a to 80-19 Wetted Matrix Relays in power reactor Reactor Protective OL or CP
Systems of Operating Nuclear Power Plants Designed by Combustion Engineering
80-20 Failures of Westinghouse 7/31/80 All holders of a Type 14-2 Spring Return to power reactor OL
Neutral Control Switches or CP
80-19 Failures of Mercury- 7/31/80 All holders of a Wetted Matrix Relays in power reactor OL
Reactor Protective Systems or CP
of Operating Nuclear Power Plants Designed by Combustion Engineering
80-18 Maintenance of Adequate 7/24/80 All holders of a Minimum Flow Thru PWR power reactor Centrifugal Charging Pumps OL or CP
Following Secondary Side High Energy Line Rupture Supplement 3 Failure of Control Rods 8/22/80 All holders of a to 80-17 to Insert During a BWR power reactor Scram at a BWR OL or CP
Supplement 2 Failure of Control Rods 7/22/80 All holders of a to 80-17 to Insert During a Scram BWR power reactor OL
at a BWR